Head for automatic fire-extinguisher.



PATENTED MAR. 24, 1908.

' L. E. FAGAN.

HEAD FOR AUTOMATIC FIRE EXTI NGUISHBRS." APPLIOATiIQNiFILED'APILZQ,1907.

11d e wfort- 4 5:15 Qyffarney 5661/63 17 Fqyqlz UNITED STATES PATENT()FFICE.

LEWIS E. F'AGAN, or MINNEAiOLIS, MINNESOTA HEAD son AUTOMATICrmn-sx'rmeursnnas.

Specification of Letters Patent. Patented March 24, 1908.

Application filed April 29, 1901. Serial No. 370,807.

No. 2,629. I

lever 10,"and the arms are sprung together slightly and increase thetension exerted by 50 the stri The frame 11 of the device is formedintegrally with the bushing.

The strut9 is somewhat pointed at both,

3o tinguisher head, containin new and useful Improved Heads 'forAutomatic Fire-EXtinguishers, of which the following is aspecification.

My invention relates to automatic fire-extinguisher systems, andparticularlyto the devices for preventing the escape of the fluid untilthe devices are made to operate by the I I efiects'of heat. y

The object of the invention is to increase the efiiciency and durabilityof the device byproviding an operating mechanism composed of resilient'non-corrosive metal and do away with 03.8111 8 or pockets inwhlch dirt a I or dust might collect and interfere with the reliabilityof the device.

To this end I employ resilient operatin devices that are restrained fromaction by a fusible link for holdings. cap or'valve on the fluid openingand which are adapted upon the fusing of the link to s ring out of'theway and permit the fluid to ischarge.- 1

My improvements are illustrated in the accompanying drawin s, in which-Figure l'is a front e evation of the fire-exmy improvements and showingall of t e parts assembled inposition to restrain the flow of the fluid;Fig. 2 is a centralvertical section on i the line A-A of Fig.1; and Fig.3 is a horizontal section on the line B-B of Fig. 1.

- Inthe drawings 1 desi hates the hollow bushing throu h which t e.fluid may discharge, and wfii'ch, by means of the screwthreads 2, isconnectedwith a pipe of the distributing system; 3. is the nozzleportion of the bushing: 4 a disk thereon; and 5 a cap seated on thedisk. I I

YEA link 6' of 'material that is fusible at, suitably low temperatureengages a strip of resilient metal and holds it in contact-with thestrut 9 that presses the ca 5 to its seat. The resilient strip 7 issecure by pins 8 to the depending resilient arms of a U-shapedends, thelower point seating on the cap 5 and the u per bearing againstthehorizontal portion 0' the lever 10. The upper surface.

of the lever bears against the wedge-shaped under surface 12 of theframe.

In use, the'headhavin been connected to va fluid pipe, when the ink 6 isfused the spring bar 7 is released and its resilience will t now thearms of the U-shaped lever laterally and thus free the -strut and permitthe fluid to lift the cap and flow from the nozzle 3. A deflector 13 onthe top of the frame serves to distribute the fluid.

Having described my invention, what I claim and desire to secure byLetters Patent 1s 1. A sprinkler head, comprising a nozzle, a

cap therefor,an open frame formed on the nozzle and having awedge-shaped inner surface op osite the nozzle, a resilient U'-shapedlever t e body of which bears against said wedge-shaped surface, a strutengaging said cap and lever body, a spring connectin the ends of thelever arms and a fusible lin for flexing said arms and spring andconnecting them to the strut, substantially as set forth.

2. Asprinkler head, comprising anozzle, a cap therefor, an open frameformed on the nozzle, a U-shaperl lever loosely seated on said frameopposite the nozzle and having resilient arms a strut engaging said capand ,lever body a spring connecting the ends of the lGVfil'J runs. and afusible link for flexing said arm's and spring and connecting them to thSi ru t, substantially as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses this 25th day of April, 1907. g.

LEWIS E. FAGAN. Vfitnesses:

P. H. GUNoKEL, H. A. BOWMAN.

